Memorable, often funny prose complements the crafty plot of Bradley’s fifth Flavia de Luce novel (after 2011’s I Am Half-Sick of Shadows). The year 1951 marks the 500th anniversary of the death of St. Tancred, who gave his name to 11-year-old Flavia’s local church in the village of Bishop’s Lacey. That the occasion will include the opening of the saint’s tomb excites Flavia, whose curiosity about the excavation leads her to find the body of a murder victim. The precocious and irrepressible Flavia (who was booted from the Girl Guides for “an excess of high spirits”) continues to delight. Portraying a 11-year-old as a plausible sleuth and expert in poisons is no mean feat, but Bradley makes it look easy. The reader never loses sight of Flavia’s youth, but also never wonders at the likelihood that someone with her qualities exists. Agent: Denise Bukowski, the Bukowski Agency. (Feb.)